>sp|C6A3R1|PSB2_THESM Proteasome subunit beta 2 OS=Thermococcus sibiricus GN=psmB2 MEKKTGTTTVGIKLKDGVVLAADTQASLDHMVETLNIKKILPITDRIAITTAGSVGDLQA LARMLEAEAKYYQFTWGKPMTAKAMANLLSNILNESKWFPYMVQIIIGGYVEEPTLASLD PLGGLIFDNYTTTGSGSPFAIAILEDGYKEDMSIEDARELAIKAVRTAGKRDVYTGERKI QVITITKEGMKEEFVEFKE